Why did people in the American South object to Henry Clay's American System? A
They opposed the high tariffs that were imposed on goods they needed.
B
All of the infrastructure projects were in located in the Northeast.
с
It would cause competition by opening agricultural land in the West.
D
New taxes on cotton made the crop less profitable for farmers.

Southerners opposed Clay's American Systems because the south already had rivers to transport goods and they did not want to pay for roads and canals that brought them no benefit. Since Southerners had to pay tariff, they wanted to make sure that when the tariff was used, they profit from it as well.

Explanation:

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they thoght they were going to nuke each other